Start with two primes for a cold engine. The add and one/two per attempt at a start. You soon get to know the peculiarities of the individual aircraft you fly.
Give the primer time to fill up before you push it back in.
Throttle position doesn't matter. The fuel is squirted in close to the inlet on the cylinder.
To clear a flooded engine, throttle wide open gives maximum airflow over the fuel to evaporate it.
Mixture to ICO stops any more fuel being added to worsen the problem.
When the air/fuel mixture is correct hopefully the engine will fire then the mixture can go rich.
Over priming usually results in the fuel entering the cylinder washing the oil off the bores then out through the exhaust and onto the floor underneath the a/c.
Last edited by snips; 8th December 2008 at 19:17.
Reason: Forgot Something